Since a few years ago, several consecutive murder cases have occurred in Sandu Province. An inverted cross was left on all the dead bodies, so the criminal was called the "Cross Killer" by the police and the media.
The police went out with all their strength, but could not find any clues about the murderer. Instead, panic spread throughout the province, and everyone was in danger for a while.
The serial murders lasted for more than a year and then temporarily stopped. Half a year later, a murder case occurred in a remote small border town in Sandu Province. At the same time, various things about the "Cross Murderer" gradually came to light...
